# Flat Equalizer vs Bass Booster | Extra Volume

The clearest difference is review sentiment: Flat Equalizer at 88% against Bass Booster | Extra Volume's 0%. Flat Equalizer also leads on update cadence (fortnightly vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Flat Equalizer sells 4 in-app purchases, starting at $2.99 per 7 days and Bass Booster | Extra Volume sells 2 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Flat Equalizer ships an update fortnightly, Bass Booster | Extra Volume every 2 months. The most recent releases landed on September 16, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Flat Equalizer | Bass Booster | Extra Volume |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.6 (43 ratings)](https://appshunter.io/ios/app/bass-booster-extra-volume/id6756065102/reviews)** |
| Number of ratings | — | **43** |
| Positive reviews | **88.2% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 11 MB | 54 MB |
| Requires iOS | 17.6 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Md Milon Hossain](https://appshunter.io/developer/1729011832) | [AI Apps OU](https://appshunter.io/developer/1675115473) |

## What reviewers say

### Flat Equalizer

[App page](https://appshunter.io/ios/app/flat-equalizer/id6753087386)

Enhance your audio with a professional music equalizer and powerful volume booster. Fine-tune tracks with custom presets or create your own settings. Experience immersive sound with advanced features for wired and wireless headphones.

**Highlights:** 10-band music equalizer, Headphone volume booster, Customizable EQ presets, Extra Boost feature, Bluetooth equalizer support, Save custom EQ settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $99.00 | per year |
| Lifetime | $9.99 | one-time |
| Lifetime | $29.99 | one-time |

**What reviewers like**

- 🔊 Loud and Crystal Clear
- 💎 Crystal Clear Sound
- 🎨 Perfect Sound Customizer
- 🎯 Love the Presets
- 🌟 Highly Recommended


### Bass Booster | Extra Volume

[App page](https://appshunter.io/ios/app/bass-booster-extra-volume/id6756065102)

Enhance your audio experience with this app that boosts volume and deepens bass for music, videos, and calls. Adjust sound levels and improve clarity with built-in equalizer features. Enjoy louder, clearer sound without complicated settings.

**Highlights:** Volume booster, Bass booster, Audio enhancer, Music equalizer, Sound amplifier, Speaker booster

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Volume & Bass Booster Weekly Pro | $4.99 | per 7 days |
| Volume & Bass Booster Yearly Pro | $39.99 | per year |


## Frequently asked questions

### Is Flat Equalizer free?

Flat Equalizer is free to download, with in-app purchases available.

### Is Bass Booster | Extra Volume free?

Bass Booster | Extra Volume is free to download, with in-app purchases available.

### Do Flat Equalizer or Bass Booster | Extra Volume have ads?

Neither Flat Equalizer nor Bass Booster | Extra Volume shows ads.

### Which is updated more often, Flat Equalizer or Bass Booster | Extra Volume?

Flat Equalizer ships an update fortnightly, and Bass Booster | Extra Volume every 2 months. Most recently, Flat Equalizer was updated on September 16, 2026 and Bass Booster | Extra Volume on September 11, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*